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package otto
import (
"testing"
)
// #750 - Return _ instance.
func Test_underscore_utility_0(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("#750 - Return _ instance.", 2, function() {
var instance = _([]);
ok(_(instance) === instance);
ok(new _(instance) === instance);
});
`)
})
}
// identity.
func Test_underscore_utility_1(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("identity", function() {
var moe = {name : 'moe'};
equal(_.identity(moe), moe, 'moe is the same as his identity');
});
`)
})
}
// random.
func Test_underscore_utility_2(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("random", function() {
var array = _.range(1000);
var min = Math.pow(2, 31);
var max = Math.pow(2, 62);
ok(_.every(array, function() {
return _.random(min, max) >= min;
}), "should produce a random number greater than or equal to the minimum number");
ok(_.some(array, function() {
return _.random(Number.MAX_VALUE) > 0;
}), "should produce a random number when passed <Number.MAX_VALUE>");
});
`)
})
}
// uniqueId.
func Test_underscore_utility_3(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("uniqueId", function() {
var ids = [], i = 0;
while(i++ < 100) ids.push(_.uniqueId());
equal(_.uniq(ids).length, ids.length, 'can generate a globally-unique stream of ids');
});
`)
})
}
// times.
func Test_underscore_utility_4(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("times", function() {
var vals = [];
_.times(3, function (i) { vals.push(i); });
ok(_.isEqual(vals, [0,1,2]), "is 0 indexed");
//
vals = [];
_(3).times(function(i) { vals.push(i); });
ok(_.isEqual(vals, [0,1,2]), "works as a wrapper");
// collects return values
ok(_.isEqual([0, 1, 2], _.times(3, function(i) { return i; })), "collects return values");
});
`)
})
}
// mixin.
func Test_underscore_utility_5(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("mixin", function() {
_.mixin({
myReverse: function(string) {
return string.split('').reverse().join('');
}
});
equal(_.myReverse('panacea'), 'aecanap', 'mixed in a function to _');
equal(_('champ').myReverse(), 'pmahc', 'mixed in a function to the OOP wrapper');
});
`)
})
}
// _.escape.
func Test_underscore_utility_6(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("_.escape", function() {
equal(_.escape("Curly & Moe"), "Curly & Moe");
equal(_.escape("Curly & Moe"), "Curly &amp; Moe");
equal(_.escape(null), '');
});
`)
})
}
// _.unescape.
func Test_underscore_utility_7(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("_.unescape", function() {
var string = "Curly & Moe";
equal(_.unescape("Curly & Moe"), string);
equal(_.unescape("Curly &amp; Moe"), "Curly & Moe");
equal(_.unescape(null), '');
equal(_.unescape(_.escape(string)), string);
});
`)
})
}
// template.
func Test_underscore_utility_8(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test("template", function() {
var basicTemplate = _.template("<%= thing %> is gettin' on my noives!");
var result = basicTemplate({thing : 'This'});
equal(result, "This is gettin' on my noives!", 'can do basic attribute interpolation');
var sansSemicolonTemplate = _.template("A <% this %> B");
equal(sansSemicolonTemplate(), "A B");
var backslashTemplate = _.template("<%= thing %> is \\ridanculous");
equal(backslashTemplate({thing: 'This'}), "This is \\ridanculous");
var escapeTemplate = _.template('<%= a ? "checked=\\"checked\\"" : "" %>');
equal(escapeTemplate({a: true}), 'checked="checked"', 'can handle slash escapes in interpolations.');
var fancyTemplate = _.template("<ul><% \
for (var key in people) { \
%><li><%= people[key] %></li><% } %></ul>");
result = fancyTemplate({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var escapedCharsInJavascriptTemplate = _.template("<ul><% _.each(numbers.split('\\n'), function(item) { %><li><%= item %></li><% }) %></ul>");
result = escapedCharsInJavascriptTemplate({numbers: "one\ntwo\nthree\nfour"});
equal(result, "<ul><li>one</li><li>two</li><li>three</li><li>four</li></ul>", 'Can use escaped characters (e.g. \\n) in Javascript');
var namespaceCollisionTemplate = _.template("<%= pageCount %> <%= thumbnails[pageCount] %> <% _.each(thumbnails, function(p) { %><div class=\"thumbnail\" rel=\"<%= p %>\"></div><% }); %>");
result = namespaceCollisionTemplate({
pageCount: 3,
thumbnails: {
1: "p1-thumbnail.gif",
2: "p2-thumbnail.gif",
3: "p3-thumbnail.gif"
}
});
equal(result, "3 p3-thumbnail.gif <div class=\"thumbnail\" rel=\"p1-thumbnail.gif\"></div><div class=\"thumbnail\" rel=\"p2-thumbnail.gif\"></div><div class=\"thumbnail\" rel=\"p3-thumbnail.gif\"></div>");
var noInterpolateTemplate = _.template("<div><p>Just some text. Hey, I know this is silly but it aids consistency.</p></div>");
result = noInterpolateTemplate();
equal(result, "<div><p>Just some text. Hey, I know this is silly but it aids consistency.</p></div>");
var quoteTemplate = _.template("It's its, not it's");
equal(quoteTemplate({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("<%\
if(foo == 'bar'){ \
%>Statement quotes and 'quotes'.<% } %>");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
var withNewlinesAndTabs = _.template('This\n\t\tis: <%= x %>.\n\tok.\nend.');
equal(withNewlinesAndTabs({x: 'that'}), 'This\n\t\tis: that.\n\tok.\nend.');
var template = _.template("<i><%- value %></i>");
var result = template({value: "<script>"});
equal(result, '<i><script></i>');
var stooge = {
name: "Moe",
template: _.template("I'm <%= this.name %>")
};
equal(stooge.template(), "I'm Moe");
// TEST: ReferenceError: $ is not defined
if (false) {
if (!$.browser.msie) {
var fromHTML = _.template($('#template').html());
equal(fromHTML({data : 12345}).replace(/\s/g, ''), '<li>24690</li>');
}
}
_.templateSettings = {
evaluate : /\{\{([\s\S]+?)\}\}/g,
interpolate : /\{\{=([\s\S]+?)\}\}/g
};
var custom = _.template("<ul>{{ for (var key in people) { }}<li>{{= people[key] }}</li>{{ } }}</ul>");
result = custom({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var customQuote = _.template("It's its, not it's");
equal(customQuote({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("{{ if(foo == 'bar'){ }}Statement quotes and 'quotes'.{{ } }}");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
_.templateSettings = {
evaluate : /<\?([\s\S]+?)\?>/g,
interpolate : /<\?=([\s\S]+?)\?>/g
};
var customWithSpecialChars = _.template("<ul><? for (var key in people) { ?><li><?= people[key] ?></li><? } ?></ul>");
result = customWithSpecialChars({people : {moe : "Moe", larry : "Larry", curly : "Curly"}});
equal(result, "<ul><li>Moe</li><li>Larry</li><li>Curly</li></ul>", 'can run arbitrary javascript in templates');
var customWithSpecialCharsQuote = _.template("It's its, not it's");
equal(customWithSpecialCharsQuote({}), "It's its, not it's");
var quoteInStatementAndBody = _.template("<? if(foo == 'bar'){ ?>Statement quotes and 'quotes'.<? } ?>");
equal(quoteInStatementAndBody({foo: "bar"}), "Statement quotes and 'quotes'.");
_.templateSettings = {
interpolate : /\{\{(.+?)\}\}/g
};
var mustache = _.template("Hello {{planet}}!");
equal(mustache({planet : "World"}), "Hello World!", "can mimic mustache.js");
var templateWithNull = _.template("a null undefined {{planet}}");
equal(templateWithNull({planet : "world"}), "a null undefined world", "can handle missing escape and evaluate settings");
});
`)
})
}
// _.template provides the generated function source, when a SyntaxError occurs.
func Test_underscore_utility_9(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('_.template provides the generated function source, when a SyntaxError occurs', function() {
try {
_.template('<b><%= if x %></b>');
} catch (ex) {
var source = ex.source;
}
ok(/__p/.test(source));
});
`)
})
}
// _.template handles \\u2028 & \\u2029.
func Test_underscore_utility_10(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('_.template handles \\u2028 & \\u2029', function() {
var tmpl = _.template('<p>\u2028<%= "\\u2028\\u2029" %>\u2029</p>');
strictEqual(tmpl(), '<p>\u2028\u2028\u2029\u2029</p>');
});
`)
})
}
// result calls functions and returns primitives.
func Test_underscore_utility_11(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('result calls functions and returns primitives', function() {
var obj = {w: '', x: 'x', y: function(){ return this.x; }};
strictEqual(_.result(obj, 'w'), '');
strictEqual(_.result(obj, 'x'), 'x');
strictEqual(_.result(obj, 'y'), 'x');
strictEqual(_.result(obj, 'z'), undefined);
strictEqual(_.result(null, 'x'), undefined);
});
`)
})
}
// _.templateSettings.variable.
func Test_underscore_utility_12(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('_.templateSettings.variable', function() {
var s = '<%=data.x%>';
var data = {x: 'x'};
strictEqual(_.template(s, {variable: 'data'})(data), 'x');
_.templateSettings.variable = 'data';
strictEqual(_.template(s)(data), 'x');
});
`)
})
}
// #547 - _.templateSettings is unchanged by custom settings.
func Test_underscore_utility_13(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('#547 - _.templateSettings is unchanged by custom settings.', function() {
ok(!_.templateSettings.variable);
_.template('', {}, {variable: 'x'});
ok(!_.templateSettings.variable);
});
`)
})
}
// #556 - undefined template variables.
func Test_underscore_utility_14(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('#556 - undefined template variables.', function() {
var template = _.template('<%=x%>');
strictEqual(template({x: null}), '');
strictEqual(template({x: undefined}), '');
var templateEscaped = _.template('<%-x%>');
strictEqual(templateEscaped({x: null}), '');
strictEqual(templateEscaped({x: undefined}), '');
var templateWithProperty = _.template('<%=x.foo%>');
strictEqual(templateWithProperty({x: {} }), '');
strictEqual(templateWithProperty({x: {} }), '');
var templateWithPropertyEscaped = _.template('<%-x.foo%>');
strictEqual(templateWithPropertyEscaped({x: {} }), '');
strictEqual(templateWithPropertyEscaped({x: {} }), '');
});
`)
})
}
// interpolate evaluates code only once.
func Test_underscore_utility_15(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('interpolate evaluates code only once.', 2, function() {
var count = 0;
var template = _.template('<%= f() %>');
template({f: function(){ ok(!(count++)); }});
var countEscaped = 0;
var templateEscaped = _.template('<%- f() %>');
templateEscaped({f: function(){ ok(!(countEscaped++)); }});
});
`)
})
}
// #746 - _.template settings are not modified.
func Test_underscore_utility_16(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('#746 - _.template settings are not modified.', 1, function() {
var settings = {};
_.template('', null, settings);
deepEqual(settings, {});
});
`)
})
}
// #779 - delimeters are applied to unescaped text.
func Test_underscore_utility_17(t *testing.T) {
tt(t, func() {
test := underscoreTest()
test(`
test('#779 - delimeters are applied to unescaped text.', 1, function() {
var template = _.template('<<\nx\n>>', null, {evaluate: /<<(.*?)>>/g});
strictEqual(template(), '<<\nx\n>>');
});
`)
})
}
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